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acid/acid_rain.htm
에너지와 인간 생활 / http://www.seph.com.ne.kr/index.html
친환경 수소에너지 시대 앞당긴다 / http://www.asiae.co.kr/uhtml/read.jsp?idxno=456503
에너지관리공단 신재생에너지센터 / http://www.energy.or.kr/
네이버 블로그 / http://blog.naver.com/knoc01?Redirect=L
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acid/acid_rain.htm
◎ http://www.seph.com.ne.kr/index.html
◎ http://www.asiae.co.kr/uhtml/read.jsp?idxno=456503
◎ http://www.energy.or.kr/
◎ http://blog.naver.com/knoc01?Redirect=Log&logNo=90038192357
◎ http://seph.com.ne.kr/hydrogen_energy.htm
◎ http://www.cheric.org/PDF/NICE/NI26/NI26-6-0655.pdf
◎
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acid/acid_rain.htm
◎ http://www.seph.com.ne.kr/index.html
◎ http://www.asiae.co.kr/uhtml/read.jsp?idxno=456503
◎ http://www.energy.or.kr/
◎ http://blog.naver.com/knoc01?Redirect=Log&logNo=90038192357
◎ http://seph.com.ne.kr/hydrogen_energy.htm
◎ http://www.hydrogen.re.kr/info.php?id=1200
◎ 수소에너
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D.K. Klliott ed., Johy Wiley(1986),p.165
http://www.me.go.kr/women/2-2.htm
http://w3.kunsan.ac.kr/%7Ehaedong/acid/acid_rain6.htm 1. 엘리뇨
2. 라니냐
3. 라마마
4. 사막화
5. 황사
6. 열대림 파괴
7. 오존층 파괴
8. 지구 온난화
9. 산성비
10. 태풍
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acid rain in a magazine.
5) Fish eggs and young fish are killed by even a small amo-unt of acid in the water.
1, ② 2, ④ 3, ② 4, ② 5, water 6, killing 7, He ran as fast as possible(he could) 8, hands 9, ① 10, ②11, pose 12, ④ 13, What's to blame for it? 14, ④ 15, ④ 16, ① 17, ⑤ 18, ⑤ 19, ③ 20,
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